Bicycle.



Patented Nov. I4, |899.

B l C Y C L E (Application filed Mar. 1'7, 1898.)

No Model.)

ATTORN EY WITNESSES Nonms Ersns co. PMo'mLn'Ho., wAsHlNsTo UNITED STATESPATENT GFEICE.

HERBERT H. PATTEE, OF PHILADELPHIA, PENNSYLVANIA.

BICYCLE.

SPECIFICATION forming part of Letters Patent N o. 636,921, datedNovember 14, 1899. Application filed March 17, 1898. Serial No. 674,271.(No model.)

To all whom t may concern.-

Be it known that I, HERBERT H. PATTEE, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inBicycles; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to an improvement in that class of bicycleshaving self-contained pumps, the object being to provide a simple andefficient pump at small cost which may be practically a part of themachine, and hence capable of being carried and operated with great easeand facility, while not sensibly adding to theweight; and the inventiontherefore consists in the construction ,arran gement, and combination ofparts, substantially as will be hereinafter described and claimed.

In the annexed drawings, illustrating my invention, Figure 1 is aperspective view of the front part of a bicycle provided with myimproved pump. Fig. 2 is a longitudinal sectional detail showing thevarious parts of the pump. Fig. 3 is a modification of the valve at thelower end of the handle-stem or its extension.

Like letters of reference designate like parts throughout all thedifferent figures of the drawings.

A denotes the front part of a bicycle-frame, to which part the arms a aare attached. B denotes the handle-bar, having the handles b b. B is thecrown of the front fork, which may be of any suitable construction, ,andC indicates the front wheel, provided with the usual expansible tire.These various parts are shown here merely by way of example toillustrate the practical application of my invention to a machine.

The crown-piece B' is formed integral with or otherwise connected to theupwardly-extending crown-tube D, within which tube D is adjustablyfitted the hollow handle-stem E, which projects downwardly from thehandlebar B. The upper end of the crown-tube D is preferably providedwith an inset-packing d,that surrounds the handle-stem E and makes atight joint at that point. The handle-stem E is elongated or ispreferably provided with a tubular extension E', of brass or othermetal, securely fastened thereto and having the same internal diameteras the handle-stem E, so that the said handle-stem and its extension mayserve as a pump-barrel to contain an aircompressing pistou. Thecrown-tube D swivels within the frame-socket A in the ordinary way.Means are provided, as usual, to prevent the handle-stem, crown-tube,and front part of the frame from rotating relatively to each other andto otherwise secure them to each other detachably.

The piston within the handle-stem E consists, essentially, of acollapsible leather washer G, on the under face of which is a metal diskor washer g, through which passes a screw g', which secures the washersg and G to the flat lower end F of the piston-rod F. This rod passesupwardly through the handlestem E and through openings atf and f in thehandle-bar B, said openings being large enough to allow the piston-rod Fto play loosely through them and so that air may be supplied throughthem to the pump. The length of the handle-stem and its extension Epermits the compressing-piston to have a sufficiently long stroke to doits work efiiciently. On the upper and outer end of the piston-rod F isa disk or handle f, that is of any desired shape, by means of which therod is grasped to operate the pump-piston.

In order to eect a successful working of the apparatus and preventleakage, it becomes necessary to secure an absolutely tight joint at thelower end of the hollow barrel E E', between said end and the contiguouswall of the surrounding crown tube D.

. Hence I iirst attach to the lower end of said handle-stemextensionstube E a screw-cap ands'pin'dle H, of metal, which screws uponthe externally-threaded lower end of the tube E. Avertical screw I,having a longitudinal central passage through the same, enters the lowerend of the tube E', where it is furnished with a nut I', which clamps awasher c' tightly between itself and the screw-cap H, and in this waythe screw I is firmly fastened to the cap H. Below cap I-I is acup-washer J', and below it is a'metal washer j. Below washer j is ashort spacing-sleeve K, then another washer k, preferably of greaterdiameter than IOO washer j, then another leather cup-washer L, and thena metal washer Z. The screw I passes through the several parts justmentionedviz., washer Z, cup-washer L, washer 7.3, sleeve K, washerj,and cup-washer .I-and clamps them all tightly together and to thescrew-cap H, the head I2 of screw I iitting closely against the lowerwasher l, as shown. Within the screw-head I2 is a chamber having aconical valve-seat and containing a conical valve M, whose stem orspindle m extends into the longitudinal passage in the screw I and actsas a guide for the valve. A screw-plug M is used to close a centralopening in the screwhead I2, whereby access can be had to the saidvalve-chamber, and the latter is provided with a lateral outlet orescape port lll2 for the compressed air. Thus the two cupwashers J andL,expanding,as they do,against the interior wall of the crown-tube D,form an absolutely tight joint that prevents any air from escapingbetween the adjoining walls of the handle-stem E E' andthe crown-tube,and at the same time the bored screw I furnishes a passage through whichthe compressed air passes out from below the compressing-piston and intothe lower end of the crown-tube D. (See Fig. 2.)

The crown-piece B generally has an opening below the crown-tube, whichopening is the lower end of said tube. I fill this opening with a blockof wood or metal N, which is secured in place by means of a cementilledgroove or by pins or other efiicient means. In order to make a tightjoint, a cupwasher O is placed contiguous'to the block N, within thecrown-tube D, and on this is a metal disk o, through which passes aheaded screw P, having a longitudinally-bored shank, the shank passingthrough a central opening in the block N. In this way a tight joint ismade at the lower end of the crown-tube D. The lower side of the block Nis entered by a curved screw-threaded pipe p, to which a iexible pipe pmay be fastened for conveying air to inate the tire.

The operation of myimproved pump will be manifest from the foregoingdescription ofthe construction and arrangement of parts. A fewreciprocations of the piston by manipulating the conveniently-locatedhandle f will be sulcient to compress enough air to ll a tire. As theair is compressed it fills the chamber below the lower end ofhandle-tube E in the crown-tube D, as I have explained, from whence itis discharged through the channels described to the tire or other placeof use. It will be evident that as the air is compressed in advanceofthe descending piston G it will enter the passage in screw I and passthrough the valve M and out through slot M2 into the lower end ofcrown-tube D and thence through the passages described into the tirewhich is to be infiated. As the piston rises again the valve lll willclose and prevent the air which has been previously compressed fromescaping. This operation will continue until the tire has been fullyindated.

In Fig. 3 I have shown a modification in the arrangement andconstruction of the bored screw and its internal valve that are placedat the lower end of the tube E. Instead of screw I, I employ a screw I4,having therein a valve M4, and the head I5 of screw I1 has no centralscrew, as M' in Fig. 2. The valve M4 has a bent end m2 on the upper endof its rod, which keeps the valve M4 from falling out of screw l, Theoperation of valve M4 is substantially the same as that of valve M.

Numerous changes in the exact combination and construction may be madewithout departing from the invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a bicycle, the combination with the crown-tube,and the hollowhandle-stem therein, of means at its lower end for makinga tight jointbetween the two parts and preventing the escape of air, said meansconsisting of a cap secured to the lower end of the handlestem, acup-washer, a metal disk, and a hollow securing-screw, having anaperture in its head and whose shank is centrally mounted in the cap, avalve mounted within the hollow of the screw, and adapted to normallyclose the aperture in the head thereof, a compressing-piston within thehandle-stem, having a rod provided with an external handle,substantially as described.

2. In a bicycle, the combination with the crown and crown-tube, of meansfor closing the lower end of said tube consisting of an inserted,passaged block, a cup-washer, a metal disk, a bored screw for fasteningthe parts together and au air-outlet tube; the handle-stem within thecrown-tube, said stem serving as a pump-barrel, and provided at itslower end with packing means for making a tight joint (between thehandlestem and crown-tube, said means consisting of a cap secured to thelower end of the handle-stem, a cup-washer, a metal disk, and a hollowsecuring-screw having an aperture in its head and whose shank iscentrally mounted in the cap, and a valve mounted within the hollow ofthe screw and adapted to normally close the aperture in the headthereof; and a compressing-piston within the handle-stem having a rodwhereby it is operated, substantially as described.

3. The combination with the outer casingtube D and its containedpump-barrel E E', of a piston-rod, a washered piston, a washeredscrew-cap l'I inserted in the lower end of said pump-barrel, a hollowscrew I passing vertically through the cap II and its washers andclamping them in position, said screw I having a chambered head l2forming a valvechamber with an interior conical valve-seat, a lateralopening M2 in said valve-chamber, a conical valve M therein whose stemor spindle m reciprocates within the hollow spindle 636,921 y s I of thescrew I, a screw-plug M' closing the central opening in the screw-headsubstantially as described.

4. The combination, constitutinga bicyclepump, of a bicycle-framecarrying a front fork and crown-piece andcrown-tube supported thereby,of a pump-barrel sleeved within the crown-tube, a' piston and rodtherein, valve devices at the lower end of the pumpbarrel through whichcompressed air is discharged, said devices consisting of a cap securedto the lower end of the handle-stem, -a cup-Washer, a metal disk, and ahollow securing-screw, having an aperture in its head and whose shank iscentrally mounted in the cap, a valve mounted wit-hin the hollow of thescrew and adapted to normally close the aperture in the head thereof;,and devices consisting of a cup-washer O With its metal disk o at lowerend of crown-tube, a block N inserted in a vertical opening. in thecrown-piece B', a longitudinally-bored screw passing through a centralopening in the block N, and a nozzle p secured in said opening; saidparts being constructed, combined and operating substantially as setforth.

In testimony whereof I affix my signature in presence of two witnesses.

' HERBERT H. PATTEE.

Witnesses:

CARL H. FAST,

BENJ. C. WARNICK.

